Annual Meeting of Shareholders

Presentation by

Robert G. Schoenberger

Chairman, Chief Executive Officer & President

Exhibit 99.1

April 22, 2015

1

Safe Harbor Provision

This

presentation

contains

“forward-looking

statements”

made

pursuant

to

the

safe

harbor

provisions of the Private Securities Litigation Reform Act of 1995.  These forward-looking

statements include statements regarding Unitil Corporation’s (“Unitil”) financial condition, results

of operations, capital expenditures, business strategy, regulatory strategy, market opportunities,

and other plans and objectives.  In some cases, forward-looking statements can be identified by

terminology such as “may,”

“will,”

“should,”

“expects,”

“plans,”

“anticipates,”

“believes,”

“estimates,”

“predicts,”

“potential”

or “continue”, the negative of such terms, or other comparable

terminology.

These forward-looking statements are neither promises nor guarantees, but involve risks

and uncertainties that could cause the actual results to differ materially from those set forth in

the forward-looking statements. Those risks and uncertainties include: Unitil’s regulatory

environment (including regulations relating to climate change, greenhouse gas emissions and

other environmental matters); fluctuations in the supply of, demand for, and the prices of energy

commodities and transmission capacity and Unitil’s ability to recover energy commodity costs in

its rates; customers’

preferred energy sources; severe storms and Unitil’s ability to recover

storm costs in its rates; general economic conditions; variations in weather; long-term global

climate change; Unitil’s ability to retain its existing customers and attract new customers; Unitil’s

energy brokering customers’

performance and energy used under multi-year energy brokering

contracts; increased competition; integrity and security of operational and information systems;

publicity and reputational risks; and other risks detailed in Unitil's filings with the Securities and

Exchange

Commission,

including

those

appearing

under

the

caption

"Risk

Factors"

in

Unitil's

Annual Report on Form 10-K for the year ended December 31, 2014.

Readers should not place undue reliance on any forward looking statements, which speak

only as of the date they are made.  Unitil undertakes no obligation to update any forward-

looking statements to reflect any change in Unitil’s expectations or in events, conditions, or

circumstances

on

which

any

such

statements

may

be

based,

or

that

may

affect

the

likelihood

that actual results will differ from those set forth in the forward-looking statements.

2

Unitil Corporation

Unitil Corporation is a

Public Utility Holding

Company with utility

operations in Maine,

New Hampshire and

Massachusetts

serving 180,000 gas

and electric customers

Generating Financial Results

3

Earnings Per Share

12% CAGR

Earnings per share has grown at a 12% annual rate since 2012

$1.43

$1.57

$1.79

2012

2013

2014

Market Outperformance

4

Unitil 5-year total return of 106% versus 105% for S&P 500 and 87% for S&P Utility

-20%

0%

20%

40%

60%

80%

100%

120%

Unitil

S&P 500

S&P Utility Index

140%

5-Year Total Return

Worldwide Electricity Prices

5

Electricity prices in the USA remain very competitive compared to worldwide electricity prices

2014 prices in US $/kWh

Source: IEA

Worldwide Electricity Prices

$0.00

$0.10

$0.20

$0.30

$0.40

$0.50

Worldwide Natural Gas Prices

6

LNG/natural gas prices in the USA are well below worldwide LNG/natural gas prices

April 2015 LNG prices in US $/MMBtu

Source: FERC.gov

Approximately 100+ years of domestic natural gas supply

U.S. Shale Plays

Domestic Natural Resources

7

The United States ranks first in oil and gas production worldwide

U.S. Electricity Prices

8

December 2014 prices in US cents/kWh

Source: EIA

Gas Growth Potential

9

Only 60% penetration on existing

distribution system means more room

to grow 

Expansion into adjacent service areas

provides new opportunities for growth

each year

Convenient, clean, efficient and low

cost natural gas is attracting more and

more  commercial and industrial high

volume users

The increasing demand for natural

gas in our service areas provides

favorable conditions for growth

1    Poland New Service Area

2    Wells Extension

3    Lewiston Extension

10

New Service Areas

1

2

3

4

5

Gas Expansion Opportunities Provide Years of Above Industry Average Customer Growth

4    Brentwood New Service Area

5    Dover Extension

6    Hampton Extension

6

Weather-normalized gas unit sales have grown at a 5% annual rate since 2012

Gas Sales Growth

11

(therms, in millions)

*Excludes decoupled gas sales

0

60

120

180

240

300

2012

2013

2014

Weather-Normalized Gas Sales*

Gas Customer Growth

12

The total number of gas customers served grew 3% in 2014 -

triple the New

England peer group average growth

1%

3%

0%

1%

2%

3%

4%

5%

New England Peer Average

Unitil

Gas Customer Additions

0

4

8

12

16

20

2012

2013

2014

2015 F

2016 F

2017 F

ME

NH

MA

Infrastructure Replacement

13

•

Modern

gas

infrastructure

–

Approximately

70%

of

gas

mains

are

contemporary

materials -

polyethylene plastic and protected steel

•

Replacing

~14

miles

of

remaining

older

leak

prone

mains

annually

across

all

three

states to

achieve continuous improvement and modernization of our entire natural gas delivery system

Cast Iron / Bare Steel Miles Replaced

Substation Projects

14

Construction of two major electric distribution

substations in New Hampshire began in 2014

Provides capacity to meet forecasted load growth

in New Hampshire

Enhances reliability and addresses capacity

constraints at existing substations

Kingston Project:

Kingston, NH (Seacoast Region)

Construction began 2014; in service 2016

Total cost of ~$12 million

Broken Ground Project:

Concord, NH (Capital Region)

Construction to begin 2015; in service 2017

Total cost of ~$11 million

Gas rate base growing at an annual rate of 10%

Electric rate base growing at an annual rate of 4%

Utility Rate Base Growth

15

($ in millions)

($ in millions)

Gas Rate Base

Electric Rate Base

$257

$286

$313

$200

$208

$215

2012

2013

2014

2012

2013

2014

Sales and customer growth combined with constructive rate case results and

cost trackers continue to drive increases in return on equity

Constructive Regulation

16

Return on Equity

Achieved ~$60 million (~50% increase to sales margin) in rate relief since 2010

8.0%

8.2%

9.2%

2012

2013

2014

Usource

17

•

Manages over $500 million in electric

and gas energy contracts in 18

states

•

Serves over 1,200 customers

•

$5.7 million of revenue in 2014

•

$9.1 million forward book of revenue

as of December 31, 2014

•

Positioned for sustainable profit

growth

•

16% profit margin in 2014

Connecticut

Minnesota

Delaware

New Hampshire

Florida

New Jersey

Georgia

New York

Illinois

Ohio

Indiana

Oklahoma

Maine

Pennsylvania

Maryland

Rhode Island

Massachusetts

Texas

Gas & Electric

Gas

only

Competitive Energy Markets

Customers

18

Dividend Strength

Recently increased dividend in Q1 2015

Current quarterly dividend of $0.35 (annual dividend of

$1.40 per share)

Current dividend yield of ~4%

Since incorporation in 1984, Unitil has continuously paid

quarterly dividends and has never reduced its dividend

rate

19

Key Investment Highlights

Regulated local distribution utility

business model

Diversified natural gas and electric sales

Growing operations and customer base

Regulated rate base growth

Strong natural gas system expansion

Constructive rate plans and cost trackers

Dividend strength

Experienced management team